When you stock advanced LMB fingerlings (6 inch +) you don't stock the same number as you would 2 inch LMB fingerlings in spring/summer.
You have to allow for what would be natural mortalities. If you don't you will soon be overrun with LMB. Guessing the right number is no easy task.

2 inch LMB stockers for spring/summer stocking should be that years yoy.

Fall stocked 6 inch LMB should keep growing some over fall and winter in the south (MO ?) and be 10 to 12 inches and spawn the next spring/summer in a newly stocked pond.

The MO manual linked above has a county by county suggested stocking grid. However it is using old LMB/BG data still like many handbooks.